How to remove default header for Ktor client 2.0.0

Ktor v2.0.0 for Android.

The default ktor header "Accept" just overwrites my "Accept" header.

This is the way I am initializing my HttpClient:

  HttpClient(Android) {
    defaultRequest {
        header("Key", BuildConfigCore.API_KEY)
        header("Accept", "application/vnd.***.mobile-v8+json")
      
        host = hostAddress
        url.protocol = URLProtocol.HTTPS
    }
    install(Logging) {
        if (BuildConfig.DEBUG) {
            logger = Logger.DEFAULT
            level = LogLevel.ALL
        }
    }
    install(ContentNegotiation) {
        gson()
    }
    expectSuccess = false
}

But when i check with Charles interceptor, my headers looks like:

I have that

application/json

which overwrites my application/vnd... value.

Is it any way to replace the default "Accept" header?

You can remove the Accept header from the defaultRequest block and register your content type for the GsonConverter instead of using the default application/json content type.

val client = HttpClient {
    install(ContentNegotiation) {
        gson(ContentType("application", "vnd.***.mobile-v8+json"))
    }
}